2: Cho A, B, C là các tập hợp. Chứng minh rằng
(a) A∩ (B\C) = (A∩ B)\(A∩ C).
(b) A∪ (B\A) =...
Mathematics, 10.10.2021 22:40, JayHtx9529
2: Cho A, B, C là các tập hợp. Chứng minh rằng
(a) A∩ (B\C) = (A∩ B)\(A∩ C).
(b) A∪ (B\A) = A∪ B.
(c) A\(A\B) = A∩ B.
(d) (A\B)\C = (A\C)\(B\C).
Answers: 2
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